Talk:Pulse-density modulation
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[edit] Relation with other modulations
Why cannot the PDM be considered as a 1-bit PCM? PCM is also amplitude-proportional (the higher pulses correspond to higher input). Both are lowpass-filtered for restavration. Afterall, the PDM is called a SDM by some and the feature of being proportional to the input is not inherent to DMs. --Javalenok 19:03, 16 April 2006 (UTC)
The article claims that the PDM is a ∑∆ modulation. What is the difference between them? --Javalenok 08:26, 4 June 2006 (UTC)
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- I see no difference between them, and I found a reference that claims that they are the same. --TedPavlic | talk 13:46, 18 February 2008 (UTC)
Does human hearing (or perhaps the nervous system generally?) work this way?
- What "way" are you refering to? --Starx 03:53, 27 May 2004 (UTC)
I'm not sure if the Perl code belongs in the article. I think it adds a greater understanding of the algorithm that creates pdm so I put it in their. If consensus is that it doesn't belong in the article I would be fine with moving it to the talk page so it would still be accessable to those interested. --Starx 03:22, 14 May 2004 (UTC)
Starx asked me to roll back the page history so that it would not contain edit summaries by a vandal which appeared to be hostile and obscene. I couldn't figure out how to do that, so I moved the page elsewhere, then deleted it, then re-created it with the same content. I'm going to research this further, but for now I think this is acceptable for this page. All of the relevant page history consisted of creation and edits by Starx, followed by several cycles of vandalism and reversion. Advice welcome. Dpbsmith 22:14, 26 May 2004 (UTC)
